raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:495274

Charcot-Marie-Tooth disease type 2T

Synonyms: AR-CMT2T · Autosomal recessive axonal Charcot-Marie-Tooth disease type 2T · CMT2T

Type
Disease
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Adult
Status
active

A rare autosomal recessive axonal hereditary motor and sensory neuropathy characterized by adult onset of slowly progressive distal muscle weakness and atrophy, sensory impairment, and decreased or absent deep tendon reflexes predominantly in the lower extremities. Patients present gait disturbances but remain ambulatory. Mild involvement of the upper limbs may be seen.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enCharcot-Marie-Tooth disease type 2TAR-CMT2T · Autosomal recessive axonal Charcot-Marie-Tooth disease type 2T · CMT2T
frMaladie de Charcot-Marie-Tooth type 2TAR-CMT2T · CMT2T · Maladie de Charcot-Marie-Tooth axonale autosomique récessive type 2T
deCharcot-Marie-Tooth Krankheit Typ 2TAR-CMT2T · CMT2T · Charcot-Marie-Tooth Krankheit, axonale, autosomal-rezessive, Typ 2T
esEnfermedad de Charcot-Marie-Tooth tipo 2TCMT2T · CMT2T-AR · Enfermedad de Charcot-Marie-Tooth axonal autosómica recesiva tipo 2T
itMalattia di Charcot-Marie-Tooth tipo 2TCMT2T · CMT2T-AR · Malattia di Charcot-Marie-Tooth assonale autosomica recessiva tipo 2T
nlZiekte van Charcot-Marie-Tooth type 2TAR-CMT2T · Autosomaal recessieve axonale ziekte van Charcot-Marie-Tooth type 2T · CMT2T
ptDoença Charcot-Marie-Tooth tipo 2TDoença Charcot-Marie-Tooth tipo 2T axonal autossomica recessiva · CMT2T · CMT2T-AR
plChoroba Charcota, Mariego i Tootha, typu 2TChoroba Charcota, Mariego i Tootha aksonalna, autosomalna recesywna, typu 2T
csCharcot-Marie-Toothova nemoc, typ 2TCMT2T · AR-CMT2T · Autozomálně recesivní, primárně axonální Charcot-Marie-Toothova nemoc, typ 2T
ukХвороба Шарко-Марі-Тута, тип 2ТAR-CMT2T · Аутосомно-рецесивна аксональна хвороба Шарко-Марі-Тута, тип 2Т · CMT2T
zh夏科特-玛丽齿病2T型常染色体隐性夏洛特-玛丽齿病2T型
trCharcot-Marie-Tooth hastalığı tip 2TCMT2T · AR-CMT2T · Otozomal çekinik aksonal Charcot-Marie-Tooth hastalığı tip 2T

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM617017NTBTvalidated
ICD-10G60.0NTBTattributedvalidated
MONDO0044640Evalidated
UMLSC4015635Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (1):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
MMEDisease-causing germline mutation(s) (loss of function) inAssessedHGNC:7154ENSG000001965491205203q25.2membrane metalloendopeptidase26991897[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families10 casesWorldwideCase(s)Validated26991897[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_26991897[PMID]

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card